US President Donald Trump slammed Twitter and Facebook for blocking links to a New York Post article purporting to expose corrupt dealings by election rival Joe Biden and his son in Ukraine. The former vice president and the Democratic nominee for the November 3 election, has repeatedly denied any such involvement. Trump in his Des Moines rally said, “With Biden, they take negative posts down almost even before they go up. They are trying to protect him.” Watch the full video for more details.